#include "artclass.h"
#ifndef EVAL
#include "grader.cpp"
#endif
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
#define precision(n) fixed << setprecision(n)
#define pb push_back
#define ub upper_bound
#define lb lower_bound
#define mp make_pair
#define eps (double)1e-9
#define PI 2*acos(0.0)
#define endl "\n"
#define sz(v) int((v).size())
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
#define do_not_disturb ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define OK cout << "OK" << endl;
int style(int H, int W, int R[500][500], int G[500][500], int B[500][500]){
int green = 0, white = 0, black = 0;
set <int> st;
for(int i = 0; i < H; i++){
for(int j = 0; j < W; j++){
st.insert(256*256*R[i][j]+256*G[i][j]+B[i][j]);
if(G[i][j] > R[i][j] && G[i][j] > B[i][j]){
green++;
}
if(G[i][j]+R[i][j]+B[i][j] > 600) white++;
if(G[i][j]+R[i][j]+B[i][j] < 30) black++;
}
}
if(black >= W*H*0.01) return 1;
if(sz(st) > min(H, W)*min(H, W)/2) return 3;
if(green >= W*H/.3) return 2;
return 4;
}
